222140840 has 16 divisors (see below), whose sum is σ = 499816980. Its totient is φ = 88856320.

The previous prime is 222140839. The next prime is 222140843. The reversal of 222140840 is 48041222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220403716 + 1737124 = 14846^2 + 1318^2 .

It is not an unprimeable number, because it can be changed into a prime (222140843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2776721 + ... + 2776800.

Almost surely, 2^222140840 is an apocalyptic number.

222140840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222140840 is an abundant number, since it is smaller than the sum of its proper divisors (277676140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222140840 is a wasteful number, since it uses less digits than its factorization.

222140840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553532 (or 5553528 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 222140840 is about 14904.3899573247. The cubic root of 222140840 is about 605.6329145934.

The spelling of 222140840 in words is "two hundred twenty-two million, one hundred forty thousand, eight hundred forty".